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Home Product BW40-12 Fuse 40A 12V Circuit Breaker Protector - BW Series Safety Switch Module
Autonics Light curtains BW40-12

BW40-12 Fuse 40A 12V Circuit Breaker Protector - BW Series Safety Switch Module

BW40-12 Motor Protector
BW40-12 Thermal Relay
BW40-12 Overload Switch
BW40-12
BW40-12 Motor Protector, Thermal Relay, and Overload Switch delivers precise motor protection against overload, overheating, and electrical faults, ensuring equipment safety and operational reliability.
Categories:Automation
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Product Description

The BW40-12 Motor Protector integrates advanced motor protection features, combining the BW40-12 Thermal Relay for precise temperature monitoring and the BW40-12 Overload Switch for automatic circuit interruption during excessive current. Designed with 3-phase inputs and 2 relay outputs, it supports direct connection to up to 4 auxiliary modules. Equipped with RS-485 communication, it operates within 100-480V AC and -25°C to +60°C environments. Ideal for industrial automation, energy systems, and machinery, it offers compact design, adjustable trip settings, and robust fault detection. Lacks built-in display but features LED status indicators. Typical detection thresholds range from 0.1-30A with 1-10s response delay. Its IP65-rated enclosure ensures durability in harsh conditions.
Parameter Specification
Model Identification BW40-12 Motor Protector
Rated Operational Current 0.1-40A Adjustable
Thermal Response Class 10A @ 20℃
Contact Configuration 3P (NO+NC)
Mechanical Endurance 1,000,000 Cycles
Electrical Durability 100,000 Cycles @ 440VAC
Insulation Voltage 690VAC
Impulse Withstand 6kV
BW40-12 Thermal Relay Ambient Compensation
Calibration Accuracy ±5%
Reset Mode Manual/Auto Selectable
BW40-12 Overload Switch Instant Trip @ 600% In
Termination Type Screw Clamp 35mm² max
Housing Material UL94 V-0 Thermoplastic
Protection Degree IP20
Certification IEC/EN 60947-4-1
question:What shipping methods do you offer?
answer:We support DHL, Fedex, UPS, and other major carriers for global delivery.
question:Why are product labels removed upon delivery?
answer:Labels are removed to comply with brand policies or authorized distribution agreements.
question:Why is a handling fee charged?
answer:Handling fees cover payment processing and transaction costs for secure orders.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:What shipping methods do you offer?
answer:We support DHL, Fedex, UPS, and other major carriers for global delivery.
question:Why are product labels removed upon delivery?
answer:Labels are removed to comply with brand policies or authorized distribution agreements.
question:Why is a handling fee charged?
answer:Handling fees cover payment processing and transaction costs for secure orders.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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